Knowledge Hills

Adjusting Your Calendar in Microsoft Project

Now that we have a basic project plan put together, we'll examine some of the other features you'll need on a regular basis or those that can help you to spot trouble in your project. One such area is the base calendar used by the project. The default calendar has work-time scheduled every Monday - Friday 8AM - 5 PM, 52 weeks of the year.

To effectively calculate dates for items within your project, you will need to modify the base calendar to include things like holidays, planned shutdowns, etc. This is how you would make these adjustments:

  1. Click on 'Tools' menu.
  2. Select 'Change Work Time' from this menu and the following dialog will be displayed:

Change working time in microsoft project

  1. With a copy of your companies holiday schedule, scroll through the calendar until you find the correct month for a holiday.
  2. Click on the day you wish to change, so that it's highlighted with a box outline.
  3. Then click 'Nonworking time' on the right-hand side of the dialog. This day will now be marked as a non-workday and any tasks that fall on that date will be updated automatically. You can also set a date to half a day by using the Nondefault working time option.

Note: Every resource in your project has an individual calendar based off the Standard calendar. You can update a resources calendar from the 'Resource Information' dialog to enter things like vacation time, business trips, etc.

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